Cylinder range: 

0.00D ~ -6.00D (Step: 0.25D)( 0.00D to 8.00D with additional

lens of -2.00D)

Cylinder axis: 

0 to 180°, 5°steps

Cross Cylinder:

±25 diopters

Cross-cylinder lens:

±0.25D

Rotary prisms:  

0 to 20,1 steps

P.D.adjustment:  

48-75mm,1mm steps

Dimensions:

345*295*85(mm)

Net weight:  

4.5Kg

Sphere powers range:

+16.75D to-19.00D,with minimum reading 0.25D or 0.12D

When +0.12D auxiliary lens or optional±0.12D lens is in use

+26.75D to-29.00D

(When optional ±10.00D lens is in use)

Cylinder power range:

0 to-6.00D, with minimum reading 0.25D or 0.12D 

(when auxiliary lens is in use)

0 to-8.00D 

(when-2.00D auxiliary lens is in use)

Astigmatic axis scale:

0 to 180° in 5° steps

Cross cylinder:

±0.25D

Reversal Type

(synchronized with astigmatic axis)

Rotary prism: 

0 to 20D in 1D step

Interpupillary adjustment:

48mm to 80mm in 1mm

step 

(right and left synchronized)

Forehead rest adjustment:

 16mm backward and forward

Convergence:

The optical axes of the lenses are aligned at a distance of

400mm from the vertexes of the corneas

(2mm each for right and left inward)

Interpupillary distance enabling convergence

57mm to 80mm Corneal distance